2124772domain: NAppears in sequencesNumber of (n+1)X(4+1) 0..2 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.at n=6A236051Number of (n+1)X(7+1) 0..2 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.at n=3A236054